Motor-plow.



O. E. PATTISON. MOTOR PLOW.

. APPLICATION FILED JULY 6,1910. 1 523,440. Patented Dec. 23, 1913.

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Qwumatz myw O. E. PATTISON.

MOTOR PLOW.

APPLICATION FILED JULY 6,1910.

Patented Dec. 23, 1913.

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MOTOR PLOW.

APPLICATION FILED JULY 6,1910.

Patented Dec. 28, 1913.

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MOTOR-PLOW.

Specification of Letters Patent.

Patented Dec. 23,1913.

Application filed July 6, 1910. Serial No. 570,575.

To all whom it may concern:

Be it known that I, ORVILLE E. PA-TTISON, a citizen of the United States of America, residing at Winamac, in the county of Pulaski and State of Indiana, have invented new and useful Improvements in Motor- Plows, of which the following is a specification.

This invention relates to that class of plows which are driven by a mechanical motor, and it has for its object to produce a motor plow of simple and light construction which shall be equipped with improved means for connecting the draft beam of the plow with the motor frame.

Further objects of the invention are to simplify and improve the general construction, arrangement and combination of parts in a device of the class referred to.

Vith these and other ends in view which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed out in the claims. v

In the accompanying drawings has been illustrated a simple and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations and modifications within the scope of the invention may be resorted to when desired.

In the drawings,Figure 1 is a top plan view of a motor plow constructed in accordance with the invention. Fig. 2 is a sectional side elevation of the same. Fig. 3 is a front view. Fig. 4 is a detail view in sectional elevation of the plow supporting crank shaft. Fig. 5 is a sectional detail view taken on the line 55 in Fig. 1. Fig. 6 is a detail view in side elevation of the foot 2 levers and the cap plate cooperating there- The frame is supported in part upon a propulsion wheel 5, the axle of which 6 is supported for rotation in suitable boxes or bearings upon the sides of the frame adja cent to the rear end of the latter. The shaft or axle 6 has a sprocket wheel 7 which is connected by a chain 8 with a sprocket wheel 9 upon a shaft 10 which is supported for rotation in suitable bearings, said shaft carrying a spur wheel 11 meshing with a pinion 12 upon a shaft 13 which is driven by power derived from a gasolene or other motor 14 which is suitably supported upon the frame of the machine, said motor having a main shaft 15 carrying a fly wheel 16.

17 is the water tank associated with the engine, and controlling levers 18 and 19 for said engine have been conventionally indicated in suitable proximity to the operators seat 20 which is supported upon a spring 21 suitably mounted upon the frame.

Rigidly connected with the front bar 3 of the frame is a cage A composed of four suitably spaced rodsor bars 22 which may 'be described as being located at the four corners of a square. Projecting forwardly into the cage A is the front end of the plow beam 23 which is equipped upon the sides thereof with anti-friction rollers 24 which operate between the front and rear cross bars of the cage so as to permit the front end of the plow beam to move vertically. These rollers constitute connecting members between the plow beam and the cage. When the frame of the machine is propelled forwardly, the cage A will engage the roller 24 and will thus pull the plow. in a forward direction; contrariwise when themachine is backed, the'plow will be backed by the action of the front bars of the cage A in a rearward direction against the rollers 24. It is obvious that these parts must be constructed of proper dimensions to insure the requisite strength and durability.

The plow beam is provided at its rear end with a standard 25 carrying the plow 26. aid plow beam is also provided on its underside intermediate its ends with a box" or casting 27 having a longitudinal slot 28 wherein operates an L-shaped crank 29 formed upon a shaft 30 which is supported for oscillation in the sides of the frame. It is obvious that by rocking the shaft 30 the plow may be raised or lowered. Springs S connect the angular or L shaped crank 29 with the sides of the plow frame for the purpose of assisting in lifting the plow, which latter, being thus partly counterbalanced, will be easily manipulated. The rock shaft 30 has an arm 31 which is connected by a link 32 with a lever 33 which is fulcrumed upon an arm 3 t extending radially from a shaft 35 fulcrumed upon the frame of the machine. Firmly secured upon said frame is a catch member consisting of a plate 36 having notches 37 adapted to be engaged by a hook 38 upon one end of the lever 33 which is actuated by a spring 39, whereby the hooked end will be moved in the direction of the notched plate. The outer end of the lever 33 has a foot picceor treadle 40. An additional lever 41 having a treadle 42 projects from the shaft 35. The link 32.0011- nects the arm 31 with the fulcrum of the lever 33. The treadles 40 and 42 of the levers 33 and 41 are so disposed as to be conveniently accessible to the operator when occupying the seat 20. It will be seen that by depressing the lever 42, the lever 33 will be moved in an upward direction, thus pulling upon the link 32 and oscillating the rock shaft 30 to elevate the plow from the ground to the position shown in full lines in Fig. 2 of the drawings, the plow being retained in such position by engagement of the hooked end of the lever 33 with one of the notches 37. To lower the plow, the operator presses upon the foot piece 40 of the lever 43, thus moving the lever against the tension of the spring 39 to disengage the hook 38 from the notch 37, and pushlng upon the link 32 to oscillate the rock shaft 30, thus lowering the plow, the plow being securely locked inlowered position by engagement of the hooked end of the lever with the forward notch 37 of the catch plate.

It will be observed that the cage A which constitutes the connecting means between the frame and the plow beam will permit a considerable latitude for vertical play or movement of the front end of the plow beam. One object of this is to permit the plow to remain relatively undisturbed when the machine is passing over rough places, because while in passing such places the plow frame may be jolted to a considerable extent, such jolting 'will merely result in the cage riding vertically upon the rollers or members 24 that extend laterally from the plow beam. The plow beam, therefore, will not be tiltedup or down, which would obviously result in making the furrow shallower or deeper than is desirable, but the plow will proceed steadily at its work without material displacement or alteration of its course. Another very important function of the cage is the result of the manner in which the plow is adjustably connected with the plow frame. This connection, as hereinbefore described, is by means of the rock shaft 30 having the crank 29 which en gages the slot 28 in the casting 27 upon the plow beam, and this connection, being about midway between the ends of the plow beam, will obviously cause the front end of the plow beam to be normally overbalanced by the plow ears which are mounted upon the standard at the rear end of the beam. It follows that when the plow is to be raised from engagement with the ground, the first effect of the rocking of the shaft 30 having the crank 29 will'be to tilt the front end of the plow beam, which is movably connected with the cage in an upward direction, thereby tilting thenose of the plow upward so that the tendency will be for the plow-to leave the ground easily and quickly,

movement of the machine. The cage A thus cooperates efficiently with the plow lifting device for the purpose of placing the plow into or lifting it from the ground, and this function is auxiliary to the prime object of the cage which is to establish a flexible connection between the plow and the frame which is of extreme importance in a motor plow where the operation is rapid and where it is essential that the plow frame in its relation to the plow shall adjust itself quickly and automatically to meet all exigencies.

In addition to the propulsion wheel, the plow frame is supported upon the land wheel 43 and the furrow wheel 44.

From the foregoing description, taken in connection with the drawings hereto annexed, the operation and advantages of this invention will be readily understood and appreciated.

The general construction is light, simple and inexpensive, and the means for raising and lowering the plow and for connecting the plow with the draft frame are very simple and effective.

Having thus described the invention, what is claimed as new, is

1. In a motor driven machine of the class described, a frame having ground wheels, a plow beam, a rock shaft mounted on the frame and having a crank pivotally engaging the plow beam intermediate the ends thereof and supporting it for vertical adjustment, and draft meanscomprising guide means rigid upon the frame with which the front end of the plow beam is connected for unrestricted vertical movement.

2. In a motor driven machine of the class described, a frame having ground wheels, a plow beam having intermediate the ends thereof a member provided with a longitudinal slot, a rock shaft supported on the frame and having a crank engaging said slot, thereby supporting the plow beam for verticgll adjustment, and draft means comprising guide means rigid upon the frame with which the front end of the plow beam is.

15 having a crank engaging the slot, thereby Goptea or that patent my be obtained tornve cents each, by addressing the Washington. 10.4).

supporting the beam for vertical adjustment, a cage mounted rigidly on the front end of the frame and comprising pairs of Vertical guide members between which the front end of the plow beam extends, and bearing members on the sides of the plow beam engaging the guide members of the cage for unrestricted vertical movement.

In testimony whereof I aflix my signature in presence of two Witnesses.

ORVILLE E. PATTISON.

Witnesses:

'WILL H. PA'rrxsoN,

Fonnns'r V. PATTISON.

commissioner or latentl, 

